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123002106 = 23171205903
BaseRepresentation
bin1110101010011…
…01110011111010
322120110011011120
413111031303322
5222442031411
620112210110
73022333503
oct725156372
9276404146
10123002106
1163482337
1235239936
131c638516
141249bbaa
15abea106
hex754dcfa

123002106 has 16 divisors (see below), whose sum is σ = 260475264. Its totient is φ = 38588864.

The previous prime is 123002101. The next prime is 123002107. The reversal of 123002106 is 601200321.

It is not an unprimeable number, because it can be changed into a prime (123002101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602850 + ... + 603053.

It is an arithmetic number, because the mean of its divisors is an integer number (16279704).

Almost surely, 2123002106 is an apocalyptic number.

123002106 is an abundant number, since it is smaller than the sum of its proper divisors (137473158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123002106 is a wasteful number, since it uses less digits than its factorization.

123002106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205925.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123002106 is about 11090.6314518155. The cubic root of 123002106 is about 497.3218216678.

Adding to 123002106 its reverse (601200321), we get a palindrome (724202427).

The spelling of 123002106 in words is "one hundred twenty-three million, two thousand, one hundred six".

Divisors: 1 2 3 6 17 34 51 102 1205903 2411806 3617709 7235418 20500351 41000702 61501053 123002106